Characterization of decrystallized chitosan and its application in biosorption of textile dyes

被引：45
|
作者：
Trung, TS [1 ]
Ng, CH [1 ]
Stevens, WF [1 ]
机构：
[1] Asian Inst Technol, Klongluang 12120, Pathumthani, Thailand
来源：
BIOTECHNOLOGY LETTERS | 2003年 / 25卷 / 14期
关键词：
adsorption; chitosan; complex dye; decolorization; decrystallized chitosan;
D O I：
10.1023/A:1024562900548
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Decrystallized chitosan was produced from shrimp shells with a low degree of crystallinity (10%) and a high anionic dye binding capacity. Raw, mixed dye wastewater from a textile factory was efficiently decolorized using decrystallized chitosan that was more efficient than using normal chitosan and activated carbon. Decolorization reached 90% within 10 min and could be carried out from pH 4.5 to 8.1. Decrystallized chitosan can be regenerated by 2 M H2SO4 and was reusable more than 10 times. It is, therefore, an attractive candidate for the removal of dyes from textile wastewater.
引用
收藏
页码：1185 / 1190
页数：6
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